[R] system.time behavior using source

[Leeds, Mark (IED)]

If I type the line below at my Rprompt, it works fine. But, if I put the
same line in a file called systest.R and then source that file at
the prompt, nothing happens. IF I use R CMD BATCH, it also works in that
the system.time info is the .Rout file. Is there something I
can do so that this line also works when I source it ?  Thanks. My
information is below.

system.time(for(i in 1:100) mad(runif(1000)))



My information :

R version 2.5.0 (2007-04-23) 
i686-pc-linux-gnu 

locale:
C

attached base packages:
[1] "datasets"  "utils"     "stats"     "graphics"  "grDevices"
"methods"   "base"     

other attached packages:
 lattice filehash  reshape      zoo    chron     MASS 
"0.15-8"    "1.0"  "0.7.4"  "1.3-1" "2.3-11" "7.2-33"
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